Currently while fetching guide for every channels, there will be one additional
connection used to set the language cookie. This optimization change this behaviour
by setting the language cookie once and then use those cookie for the rest of the
channels unless there's change in channel language.
Assume there are 10 channels and each channel only use one connection. Before the
optimization the connections made are 20 (1 for guide fetch, 1 for set language,
then multiplied by 10), and after the optimization the connections made are 11
(1 for set language, 1 for guide fetch multiplied by 10).
Signed-off-by: Toha <tohenk@yahoo.com>
